It's not ideal, but it's unlikely to be too bad yet - there's plenty of meat in that chain yet, and even without the washer it'd have a hard time getting over the bolt. It's worth keeping an eye on, and I'll swap it out if it starts looking too dodgy next time I take a drill that way (don't hold your breath though, I've had vague plans to pull the dodgy bolt on Scones for ages).

Simey - it's on Blackboard Wall at Berowra, so 90 degree cliff top and dead vertical wall. Undercutting isn't an issue, at least on that section of the crag.

I find it interesting that only one side appears to have taken on the role of sacrificial anode(?), where the corrosion is more obvious; ~> certainly the other side chain is still in reasonably good knick at the bolt attachment point.

I don't recall there being a chain on top of Yesterday's Heroes last time I did it (which admittedly was 13 or 14 years ago), so presumably they were placed more recently than that and have weathered a lot in a relatively short period of time. Whip 'em out and put in a pair of SGABs I say!

Are you referring to the bolt with the tat below the roof? If my memory serves me, there are two rings before the groin-stretching roof move and one of them has tat. Is there any reason why there are two? One replaces the other or was it an attempt at a mid belay?

Pmonks - given the bolts are SS I'd say they're glue in (though maybe not, Berowra has had just about every possible fixed anchor at some stage, including Mikl's rebar efforts on Bullethole Wall). Keep an eye on that top link and washer and it'll do for another few years.

Superstu, yeah that one. I'm wondering if it was test placed and couldn't be easily pulled, so a 2nd bolt was placed next to it. It's reasonably obviously dodgy, but I don't want to hear about anyone clipping the wrong one or using it as anchors and lowering off (the other one seems bomber, but I'm a big wuss when it comes to anchors).

On 29/08/2012 Dr Nick wrote:>Pmonks - given the bolts are SS I'd say they're glue in (though maybe not,>Berowra has had just about every possible fixed anchor at some stage, including>Mikl's rebar efforts on Bullethole Wall). Keep an eye on that top link>and washer and it'll do for another few years.

Yeah, though to my naive eye it looks like there's some pretty serious galvanic action going on, given how rusty it's gotten in little more than a decade. Won't get that with "naked" SGABs.